Flush valve diaphragm



FIG. 1 is a top plan view of a first embodiment of a flush valve diaphragm showing my new design, with a central portion shown in broken lines, which do not form part of the new design;

FIG. 2 is a bottom plan view of the first embodiment shown in FIG. 1;

FIG. 3 is an enlarged section taken along lines III—III of FIG. 1, the section shows the material to be made of rubber which does not form a part of the claimed ornamental design;

FIG. 4 is an enlarged section taken along lines IV—IV of FIG. 1, the section shows the material to be made of rubber which does not form a part of the claimed design;

FIG. 5 is an enlarged section taken along section lines V—V of FIG. 1, the section shows the material to be made of rubber which does not form a part of the claimed design;

FIG. 6 is a side elevational of the first embodiment shown in FIG. 1, which appears the same about the circumferential perimeter of the diaphragm, therefore only one side elevational view is provided.

FIG. 7 is a top plan view of a second embodiment of a flush valve diaphragm showing my new design, with a central portion shown in broken lines, which do not form part of the new design;

FIG. 8 is a bottom plan view of the second embodiment shown in FIG. 7;

FIG. 9 is an enlarged section taken along lines IX—IX of FIG. 7, the section shows the material to be made of rubber which does not form a part of the claimed ornamental design;

FIG. 10 is an enlarged section taken along lines X—X of FIG. 7, the section shows the material to be made of rubber which does not form a part of the claimed design;

FIG. 11 is an enlarged section taken along section lines XI—XI of FIG. 7, the section shows the material to be made of rubber which does not form a part of the claimed design; and,

FIG. 12 is a side elevational view of the second embodiment shown in FIG. 7, which appears the same about the circumferential perimeter of the diaphragm, therefore only one side elevational view is provided. 

The ornamental design for a flush valve diaphragm, as shown. 